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Clint Eastwood has driven a number of great cars in his movie career. We immediately think about "Grand Torino" and 1968 Ford Custom in "Dirty Harry." But, let's not forget the GMC Sierra he drove along with co-star Clyde the orangutan in "Every Which Way But Loose." Take a close look at the flick next time it's on one of classic movie cable TV channels and you'll see that it has more antennas than a lonely CBer's van and a great set of off-road lights. However, we don't know what kind of GMC headlight bulbs he was running.

Putco Nite-Lux LED Headlight Bulb Conversion Kits Reviews

Brightness-color etc... Outstanding-the fitment in the housing is to loose!
(Lamp housing is new by the way) Used good ol silicone sealent to keep them from comming loose-otherwise outstanding. COMANCHE-TOL.OH.

Putco LED Headlight Bulb Conversion Kits Reviews

There will probably never be an LED with a perfect 360 degree radial pattern, but these are very close. After pulling the headlamps, and unscrewing the adjustment screws to fit them, they do fill the entire headlamp with light, and look great. They are pure white to my eye, not pretend-HID blue-white.
These headlights don't dim with power windows or when other high amperage items hit the charging system. They stay on and bright.

To be honest, there have been a lot of improvements in GMC headlight bulbs since 1978, when they released "Every Which Way But Loose." Back then you had about one choice when you headed down to the parts store to find a replacement GMC headlight bulb. Today you have a wide range of GMC headlight bulbs, including halogen and HID (high-intensity discharge) xenon bulbs. These modern GMC headlight bulbs give you a far brighter light and they last longer than previous bulbs. As you look through the AutoAnything selection of GMC headlight bulbs, remember our low price guarantee and free shipping offer.